package com.roocon.thread.net;

public class Test {
    public static void main(String[] args)  {
        String a = "helloworld2";
        final String b = "helloworld";
        String c = "helloworld";
        String d = b + 2; 
        String e = c + 2;
        System.out.println((a == d));
        System.out.println((a == e));
    }
}

